{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "Copyright © Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42965.json" } ], "title": "openshift/router: openshift/router: cloud metadata SSRF via FQDN-typed EndpointSlice bypasses destination validation", "tracking": { "current_release_date": "2026-06-30T03:58:03+00:00", "generator": { "date": "2026-06-30T03:58:03+00:00", "engine": { "name": "Red Hat SDEngine", "version": "5.3.0" } }, "id": "CVE-2026-42965", "initial_release_date": "2026-04-17T21:46:19+00:00", "revision_history": [ { "date": "2026-04-17T21:46:19+00:00", "number": "1", "summary": "Initial version" }, { "date": "2026-06-08T14:20:06+00:00", "number": "2", "summary": "Current version" }, { "date": "2026-06-30T03:58:03+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat OpenShift Container Platform 4", "product": { "name": "Red Hat OpenShift Container Platform 4", "product_id": "red_hat_openshift_container_platform_4", "product_identification_helper": { "cpe": "cpe:/a:redhat:openshift:4" } } } ], "category": "product_family", "name": "Red Hat OpenShift Container Platform 4" }, { "category": "product_version", "name": "openshift4/ose-haproxy-router", "product": { "name": "openshift4/ose-haproxy-router", "product_id": "openshift4/ose-haproxy-router", "product_identification_helper": { "purl": "pkg:oci/ose-haproxy-router?repository_url=registry.redhat.io/openshift4/ose-haproxy-router" } } }, { "category": "product_version", "name": "openshift4/ose-haproxy-router-rhel9", "product": { "name": "openshift4/ose-haproxy-router-rhel9", "product_id": "openshift4/ose-haproxy-router-rhel9", "product_identification_helper": { "purl": "pkg:oci/ose-haproxy-router-rhel9?repository_url=registry.redhat.io/openshift4/ose-haproxy-router-rhel9" } } } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "openshift4/ose-haproxy-router as a component of Red Hat OpenShift Container Platform 4", "product_id": "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router" }, "product_reference": "openshift4/ose-haproxy-router", "relates_to_product_reference": "red_hat_openshift_container_platform_4" }, { "category": "default_component_of", "full_product_name": { "name": "openshift4/ose-haproxy-router-rhel9 as a component of Red Hat OpenShift Container Platform 4", "product_id": "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router-rhel9" }, "product_reference": "openshift4/ose-haproxy-router-rhel9", "relates_to_product_reference": "red_hat_openshift_container_platform_4" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Ricardo Pchevuzinske Katz" ], "organization": "Red Hat", "summary": "This issue was discovered by Red Hat." } ], "cve": "CVE-2026-42965", "cwe": { "id": "CWE-918", "name": "Server-Side Request Forgery (SSRF)" }, "discovery_date": "2026-04-17T21:46:19+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2483184" } ], "notes": [ { "category": "description", "text": "A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN (Fully Qualified Domain Name) EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud metadata endpoint, leading to the disclosure of instance credentials and other sensitive metadata. This bypasses previous security measures for validating IP addresses.", "title": "Vulnerability description" }, { "category": "summary", "text": "openshift/router: openshift/router: cloud metadata SSRF via FQDN-typed EndpointSlice bypasses destination validation", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "known_affected": [ "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router", "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router-rhel9" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2026-42965" }, { "category": "external", "summary": "RHBZ#2483184", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483184" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42965", "url": "https://www.cve.org/CVERecord?id=CVE-2026-42965" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42965", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42965" } ], "release_date": "2026-04-17T21:46:19+00:00", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router", "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router-rhel9" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" }, "products": [ "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router", "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router-rhel9" ] } ], "threats": [ { "category": "impact", "details": "Important", "product_ids": [ "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router", "red_hat_openshift_container_platform_4:openshift4/ose-haproxy-router-rhel9" ] } ], "title": "openshift/router: openshift/router: cloud metadata SSRF via FQDN-typed EndpointSlice bypasses destination validation" } ] }